8141621667 has 8 divisors (see below), whose sum is σ = 11205672960. Its totient is φ = 5252659080.

The previous prime is 8141621651. The next prime is 8141621707. The reversal of 8141621667 is 7661261418.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8141621667 - 2⁴ = 8141621651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8141621567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43772067 + ... + 43772252.

It is an arithmetic number, because the mean of its divisors is an integer number (1400709120).

Almost surely, 2^8141621667 is an apocalyptic number.

8141621667 is a deficient number, since it is larger than the sum of its proper divisors (3064051293).

8141621667 is a wasteful number, since it uses less digits than its factorization.

8141621667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87544353.

The product of its digits is 96768, while the sum is 42.

The square root of 8141621667 is about 90230.9351996310. The cubic root of 8141621667 is about 2011.7328412071.

The spelling of 8141621667 in words is "eight billion, one hundred forty-one million, six hundred twenty-one thousand, six hundred sixty-seven".